This module is used to ecoshard sets of files.
Usage:
python -m ecoshard \[original\_file\] --hashalg md5 --rename
(creates an ecoshard from original file with the md5 hash algorithm and renames the result rather than creating a new copy)
python -m ecoshard *.tif --compress --buildoverviews
(does a GIS compression of all *.tif files in the current directory and builds overviews for them and renames the result rather than making a new copy. Here if –rename had been passed an error would have been raised because rasters cannot be in-place compressed. The target output files will have the format [original_filename]_compressed_[hashalg]_[ecoshard][fileext])
python -m ecoshard *.tif --compress --buildoverviews --upload
(does the previous operation but also uploads the results to gs://ecoshard-root/working-shards and reports the target URLs to stdout)
python -m ecoshard *.tif ./outputs/*.tif --validate
(searches the .tif and ./outputs/.tif globs for ecoshard files and reports whether their hashes are valid or not)
Release History
0.3.0 (2019/09/26)
Added a new command line mode –reduce_factor that reduces the number of pixels in a raster by that integer amount. Ex:
python -m ecoshard base.tif --reduce_factor 4 max target.tif
this call makes the size of the pixels in base.tif 4 times larger on the edge, thus reducing the total size of the image by 16 times, the convolution upsample is done with a “max” and the output file is target.tif. The modes “min”, “max”, “sum”, “average”, “mode” are available.
0.2.2 (2019/09/24)
Added a download_url function to ecoshard to fetch files via http(s).
Developing Flask module to visualize ecoshards.
0.2.1 (2019/06/28)
Hotfix: gs to gsutil for copying to buckets.
0.2.0 (2019/06/28)
Added functionality to download a url.
Added functionality to copy to a google bucket.
Fixed an issue on functions that should write a token file but didn’t.
0.1.1 (2019/06/27)
Added a --force flag to the command line utility.
0.0.2 (2019/06/26)
Initial release.
1 maintainer
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